CN202695309U - Small-sized high-power relay - Google Patents
Small-sized high-power relay Download PDFInfo
- Publication number
- CN202695309U CN202695309U CN 201220304594 CN201220304594U CN202695309U CN 202695309 U CN202695309 U CN 202695309U CN 201220304594 CN201220304594 CN 201220304594 CN 201220304594 U CN201220304594 U CN 201220304594U CN 202695309 U CN202695309 U CN 202695309U
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- CN
- China
- Prior art keywords
- projection
- movable contact
- contact spring
- armature
- power relay
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- Expired - Fee Related
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Abstract
The utility model provides a small-sized high-power relay. The small-sized high-power relay comprises a base, a yoke iron, an armature iron, a movable contact spring, a framework and a shell, wherein the framework is wound by a coil, one end of the movable contact spring is fixed with the yoke iron, the middle part of the movable contact spring is fixed with the armature iron, the other end of the movable contact spring is provided with a movable contact, and at least one step-shaped bulge which is used for propping up the outer side of the armature iron is arranged on the inner side wall of the shell. In the small-sized high-power relay, the step-shaped bulge is arranged on the inner side edge of the shell and is used for propping up the armature iron during assembly to prevent the armature iron from swinging, thereby enabling a movable contact on the movable contact spring to be always opposite to a static contact in position and preventing the reduction of electric conduction performance caused by poor contact; and the small-sized high-power relay has high reliability.
Description
Technical field:
The utility model relates to the relay field, relates in particular to a kind of small high-power relay.
Background technology:
Relay is a kind of switching device with Current Control, usually is applied in the automatic control circuit, and it is actually a kind of a kind of " automatic switch " with the larger electric current of small electric diffluence control is requisite device in the automatic control circuit.(the small-sized size of longest edge that generally refers to is greater than 10mm for small high-power relay, and the relay less than 25mm, the high-power relay of rated current more than 10A that refer to) because its volume is little, high-power advantage is widely used in household electrical appliance, communication equipment and the automobile circuit etc.
Existing small high-power relay comprises shell, pedestal, two static contact spring pieces, movable contact spring, armature, yokes and is twining the skeleton of coil, skeleton and yoke are installed on the pedestal, one end and the yoke of movable contact spring are fixed, middle part and the armature of movable contact spring are fixed, the other end of movable contact spring is provided with moving contact, described the first static contact spring piece is provided with the first fixed contact, the second static contact spring piece is provided with the second fixed contact, moving contact and the first fixed contact or the second fixed contact are fitted, during assembling, described jacket and is connected with pedestal around coil.Since in this relay without any the stopping means of restriction armature or movable contact spring position, therefore, in the process of movable contact spring action, be easy to swing, so that contacting of fixed contact and moving contact is incomplete, thereby cause loose contact, cause the electric conductivity of contact to descend, therefore the reliability of existing this small high-power relay is lower.
The utility model content:
The technical problem that the utility model solves is, overcomes existing technological deficiency, provides a kind of reliability high small high-power relay.
The technical scheme that the utility model provides is: the utility model provides a kind of small high-power relay, it comprises pedestal, yoke, armature, movable contact spring and is twining skeleton and the shell of coil, one end and the yoke of movable contact spring are fixed, middle part and the armature of movable contact spring are fixed, the other end of movable contact spring is provided with moving contact, and the madial wall of described shell is provided with at least one step-like projection that offsets for the outer side edges with armature.
Described each step-like projection comprises rectangle the first projection and one second projection that is pasting the shell inner bottom part, the first projection and the second projection consist of step-like projection, the height of aspect ratio second projection of described the first projection is high, the side of described the first projection and the outer side edges of armature offset, and leave the space between the top margin of described the second projection and the movable contact spring.Adopt this structure, the side of the first projection and the outer side edges of armature offset, and prevent that armature from swinging laterally, leave the space between the top margin of the second projection and the movable contact spring, prevent step-like projection, have influence on swinging up and down of movable contact spring.
In the utility model, setting table scalariform projection on the inner side edge of shell is used for propping up armature during assembling, prevent that armature from swinging, thereby make the moving contact on the movable contact spring relative with the position of fixed contact all the time, prevent that the electric conductivity that loose contact causes from descending, reliability is high.
Description of drawings:
Accompanying drawing 1 is the part-structure schematic diagram that does not contain shell of the utility model small high-power relay;
Accompanying drawing 2 is the structural representation of the shell of the utility model small high-power relay;
Accompanying drawing 3 is the elevational schematic view of the utility model small high-power relay;
Accompanying drawing 4 is that B-B among Fig. 3 is to cutaway view;
As shown in the figure: 1, pedestal, 2, yoke, the 2.1, first block, 2.2, the second block, 3, armature, the 3.1, first spacing preiection, 3.2, the second spacing preiection, 4, movable contact spring, 4.1, moving contact, 5, coil, 6, skeleton, 7, static contact spring piece, 7.1, fixed contact, 8, shell, 9, step-like projection, 9.1, the first projection, the 9.2, second projection.
Embodiment:
Below in conjunction with the drawings and specific embodiments the utility model is elaborated:
Such as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4: the utility model provides a kind of small high-power relay, it comprises pedestal 1, yoke 2, armature 3, movable contact spring 4 and is twining skeleton 6 and the shell 8 of coil 5, one end of movable contact spring 4 and yoke 2 are fixing, the middle part of movable contact spring 4 and armature 3 are fixing, the other end of movable contact spring 4 is provided with moving contact 4.1, and the madial wall of described shell 8 is provided with at least one and is used for and the outer side edges of armature 3 offsets step-like protruding 9.
Described each step-like protruding 9 comprise rectangle the first projection 9.1 and one second projection 9.2 that is pasting shell 8 inner bottom parts, the first projection 9.1 and the second projection 9.2 consist of step-like projection, the height of aspect ratio second projection 9.2 of described the first projection 9.1 is high, the outer side edges of the side of described the first projection 9.1 and armature 3 offsets, and leaves the space between the top margin of described the second projection 9.2 and the movable contact spring 4.Adopt this structure, the side of the first projection and the outer side edges of armature offset, and prevent that armature from swinging laterally, leave the space between the top margin of the second projection and the movable contact spring, prevent step-like projection, have influence on swinging up and down of movable contact spring.
In the utility model, setting table scalariform projection on the inner side edge of shell is used for propping up armature during assembling, prevent that armature from swinging, thereby make the moving contact on the movable contact spring relative with the position of fixed contact all the time, prevent that the electric conductivity that loose contact causes from descending, reliability is high.
Claims (2)
1. small high-power relay, it comprises pedestal (1), yoke (2), armature (3), movable contact spring (4) and is twining skeleton (6) and the shell (8) of coil (5), one end of movable contact spring (4) and yoke (2) are fixing, the middle part of movable contact spring (4) and armature (3) are fixing, the other end of movable contact spring (4) is provided with moving contact (4.1), it is characterized in that: the madial wall of described shell (8) is provided with the step-like projection (9) that at least one is used for and the outer side edges of armature (3) offsets.
2. small high-power relay according to claim 1, it is characterized in that: described each step-like projection (9) comprises rectangle the first projection (9.1) and one second projection (9.2) that is pasting shell (8) inner bottom part, the first projection (9.1) and the second projection (9.2) consist of step-like projection, the height of aspect ratio second projection (9.2) of described the first projection (9.1) is high, the outer side edges of the side of described the first projection (9.1) and armature (3) offsets, and leaves the space between the top margin of described the second projection (9.2) and the movable contact spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304594 CN202695309U (en) | 2012-06-27 | 2012-06-27 | Small-sized high-power relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304594 CN202695309U (en) | 2012-06-27 | 2012-06-27 | Small-sized high-power relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695309U true CN202695309U (en) | 2013-01-23 |
Family
ID=47550889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220304594 Expired - Fee Related CN202695309U (en) | 2012-06-27 | 2012-06-27 | Small-sized high-power relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461354A (en) * | 2018-05-04 | 2018-08-28 | 浙江中凯科技股份有限公司 | A kind of electromagnetic switch |
-
2012
- 2012-06-27 CN CN 201220304594 patent/CN202695309U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461354A (en) * | 2018-05-04 | 2018-08-28 | 浙江中凯科技股份有限公司 | A kind of electromagnetic switch |
| CN108461354B (en) * | 2018-05-04 | 2024-01-16 | 浙江中凯科技股份有限公司 | Electromagnetic switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20170627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |